Add linux_pre_run_command to soundness

Add a `linux_pre_run_command` input parameter to the soundness workflow
jobs to allow callers to set up any dependencies or perform any other
preparations before the soundness checks are executed.

This is useful for example for repositories which require dependencies
to be installed before the build.

Author: rnro

.github/workflows/soundness.yml

@@ -63,6 +63,10 @@ on:
         type: boolean
         description: "Boolean to enable the Python lint check job. Defaults to true."
         default: true
+      linux_pre_run_command:
+        type: string
+        description: "Linux command to execute before building the Swift package"
+        default: ""
 
 ## We are cancelling previously triggered workflow runs
 concurrency:
@@ -86,6 +90,9 @@ jobs:
       - name: Mark the workspace as safe
         # https://github.com/actions/checkout/issues/766
         run: git config --global --add safe.directory ${GITHUB_WORKSPACE}
+      - name: Pre-run setup
+        if: ${{ inputs.linux_pre_run_command }}
+        run: ${{ inputs.linux_pre_run_command }}
       - name: Run API breakage check
         run: |
           git fetch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} ${GITHUB_BASE_REF}:pull-base-ref
@@ -104,6 +111,9 @@ jobs:
         with:
           persist-credentials: false
           submodules: true
+      - name: Pre-run setup
+        if: ${{ inputs.linux_pre_run_command }}
+        run: ${{ inputs.linux_pre_run_command }}
       - name: Run documentation check
         run: |
           apt-get -qq update && apt-get -qq -y install curl yq
@@ -120,6 +130,9 @@ jobs:
         with:
           persist-credentials: false
           submodules: true
+      - name: Pre-run setup
+        if: ${{ inputs.linux_pre_run_command }}
+        run: ${{ inputs.linux_pre_run_command }}
       - name: Run unacceptable language check
         env:
           UNACCEPTABLE_WORD_LIST: ${{ inputs.unacceptable_language_check_word_list}}
@@ -136,6 +149,9 @@ jobs:
         with:
           persist-credentials: false
           submodules: true
+      - name: Pre-run setup
+        if: ${{ inputs.linux_pre_run_command }}
+        run: ${{ inputs.linux_pre_run_command }}
       - name: Run license header check
         env:
           PROJECT_NAME: ${{ inputs.license_header_check_project_name }}
@@ -152,6 +168,9 @@ jobs:
         with:
           persist-credentials: false
           submodules: true
+      - name: Pre-run setup
+        if: ${{ inputs.linux_pre_run_command }}
+        run: ${{ inputs.linux_pre_run_command }}
       - name: Run broken symlinks check
         run: curl -s https://raw.githubusercontent.com/swiftlang/github-workflows/refs/heads/main/.github/workflows/scripts/check-broken-symlinks.sh | bash
 
@@ -171,6 +190,9 @@ jobs:
       - name: Mark the workspace as safe
         # https://github.com/actions/checkout/issues/766
         run: git config --global --add safe.directory ${GITHUB_WORKSPACE}
+      - name: Pre-run setup
+        if: ${{ inputs.linux_pre_run_command }}
+        run: ${{ inputs.linux_pre_run_command }}
       - name: Run format check
         run: |
           apt-get -qq update && apt-get -qq -y install curl
@@ -192,6 +214,9 @@ jobs:
       - name: Mark the workspace as safe
         # https://github.com/actions/checkout/issues/766
         run: git config --global --add safe.directory ${GITHUB_WORKSPACE}
+      - name: Pre-run setup
+        if: ${{ inputs.linux_pre_run_command }}
+        run: ${{ inputs.linux_pre_run_command }}
       - name: Run shellcheck
         run: |
           apt-get -qq update && apt-get -qq -y install shellcheck
@@ -208,6 +233,9 @@ jobs:
         with:
           persist-credentials: false
           submodules: true
+      - name: Pre-run setup
+        if: ${{ inputs.linux_pre_run_command }}
+        run: ${{ inputs.linux_pre_run_command }}
       - name: Run yamllint
         run: |
           which yamllint >/dev/null || ( apt-get update && apt-get install -y yamllint )
@@ -217,6 +245,7 @@ jobs:
             curl -s https://raw.githubusercontent.com/swiftlang/github-workflows/refs/heads/main/.github/workflows/configs/yamllint.yml > .yamllint.yml
           fi
           yamllint --strict --config-file .yamllint.yml .
+
   python-lint-check:
     name: Python lint check
     if: ${{ inputs.python_lint_check_enabled }}
@@ -228,6 +257,9 @@ jobs:
         with:
           persist-credentials: false
           submodules: true
+      - name: Pre-run setup
+        if: ${{ inputs.linux_pre_run_command }}
+        run: ${{ inputs.linux_pre_run_command }}
       - name: Run flake8
         run: |
           pip3 install flake8 flake8-import-order